BSA Gold Star Clubman

14 Фев 2015 | Author: | Комментарии к записи BSA Gold Star Clubman отключены

For a competition-hungry motorcyclist in the 1950s, a Star DBD34 Clubman was the ultimate machine, whether for on the Isle of Man, on short or on the street in unofficial burn-ups coffee bars. Lean, and unmistakably aggressive, the DBD34 was the last, fastest and best version of a series of Gold singles that included 350 and bikes in touring, trials and form.

Unmistakable appearance

Its was unmistakable: chrome-panelled fuel with BSA’s famous badge, headlight jutting up a narrow pair of clip-ons, exhaust pipe leading a heavily finned vertical And the performance was unique, too. gear was good for no less 60mph (97km/h).

With the rider’s chin the big steering damper knob, the had a genuine top speed of over (177km/h).

The Gold Star began in 1937, when Wal Handley earned a Brooklands Star award for lapping the Surrey track at over (161km/h) on BSA’s 500cc M23 Star. In the following year BSA a replica marketed under the M24 Gold Star, the name that each machine had built using selected tuned and dyno-tested, with ports, conrod and crankcases.

That first Gold also had magnesium gearbox and aluminium cylinder head and Power output was 28bhp fuelled by petrol, or 33bhp tuned to run on alcohol. Buyers a certified dyno chart their machine, a custom was maintained with Gold throughout.

But BSA management decided to reduce costs the sports Star should resemble the single as much as possible, so its was relatively standard.

After the World War, BSA produced a bike called the B32, on its pushrod single the B31. was initially made for use in trials, but fitted with an aluminium head and barrel its racing was clear. For 1949 BSA introduced the ZB32 Gold Star, a year later by the 500cc

Both were rapid, priced and came with options — four three different sets of (standard, scrambles and racing), compression ratios (for use different fuels), and choice of tanks, exhaust systems and

Suddenly the clubman racer had a well suited to road and At the TT in 1949, Harold Clark over 75mph (121km/h) on a to win the Junior Clubman’s race, and in years the Gold Star both the 350cc Junior and Senior. In the 1955 Junior, no than 33 of the 37 riders were on

But BSA’s supremacy led to the Clubman’s TT dropped after the following

Competition wins

In 1956 BSA the DBD34, which benefited a development programme that had factory aces including Nicholson ride Goldies to wins in scrambles and trials. modifications, including steeper geometry, swingarm rear and a new front brake, had subsequently fitted to the production machine. The also incorporated engine introduced by BSA’s chief Bert Hopwood.


It featured a big Amal GP carburettor, gearbox and peak output of at 7000rpm.

Other changes for the Clubman’s included the provision, for the time, of the lights required by season’s racing regulations. gave the Gold Star a normal appearance, but there was no its suitability for serious competition. was a true racebike on the road: temperamental and — most of all very fast indeed.

BSA DBD34 Gold Star (1956).

Engine Air-cooled ohv two-valve single

Capacity 499cc (85 x

Maximum power 42bhp @

Transmission Four-speed, chain drive


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